Time-lock indicator.



R. P. KNOEBEL, JR.

TIME LOOK INDICATOR.

APPLICATION FILED JUNE 1, 1914.

I 1,123,895. Patented Jan. 5, 1915.

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HS NORRIS PETERS ca. PHOTO-LITHQ. WASHINGTON, D. 1

lilldiTED STATES PATEN ROBERT PHILIP KNOEBEL, JR., OF NORTH BERGEN, H13 7."

TIME-LOCK INDZCATOR.

Application filed June 1, 191%.

T 0 all whom it may concern:

it known that I, Bonner PHILIP Knon enn, Jr, a citizen of the United States, and a resident of North Bergen, in the county of Hudson and State oi New Jersey, have invented certain new and useful Improvements in Time-Lock Indicators, of which the following is a specification.

My invention is designed to afford simple b at effective means whereby the looking or unloci-ting oi a door or other closure device may be automatically announced and registered on a time basis; and the invention consists in the specific combination and arrangement of parts and appliances hereinafter described and claimed; distinctive features being a clock work driven stylus in conjunction with an actuating electromagnet interposed in an electric circuit which is temporarily closed automatically whenever the locl: bolt is either sprung or retracted; the use of an annular record slip or chart formed with concentric lines of record rep resenting successive days or cycles of time in conjunction with means for automatically shifting the stylus with relation thereto; means for suspendin and supporting the clockwork centrally, and other details of construction fully set forth.

In the accompanying drawings, Figure 1, is a diagrammatical sectional view showing the essential elements of my invention; Fig. 9-, a top view of the same, certain parts being omitted; Fig. 3, is a detail view of the stylus and adjacent parts, on an enlarged scale; Fig. i, a transverse section of the stylus.

A, represents symbolically a clock-work movement of suitable character, preferably constructed to run at least ninety six hours and to rotate the stylus arm a, twice in that period of time. lhe clock-work A, is supported on a suspender stud or post Z), pendent from a bracket arm 6, which may be attached to a box casing B, or other stationary part. The inner portion a, of stylus arm a, is mounted upon and rigidly attached to a sleeve (4 fitting over a cylindrical part of the suspender stud b, and

1 a gear or pinion a meshing formed witn with a driving wheel a forming part of the clock work movement. The outer portion a of the stylus arm a, is pivotally attached to the said inner portion a, thereof, and is held normally in alinement therewith Serial 1T0. 842,115.

by a spring a, which tends constantly to press the shoulder a against a cor ing shoulder on the inner portion or a, as shown in Fig. l.

The sleeve S, carrvin the st lus s is u 2: J slidably mounted on the outer portion (0 of the arm a, being feathered or splined thereto as shown in l, or the parts may be otherwise formed to prevent the stylus from turning laterally upon the arm while allowing it to slide longtudinally thereon. A spring .9, is arranged to tend constantly to force the stylus sleeve S, toward the inner end of the arm and hold it in contact with either the switch stop a, or the fixed stop 0. The switch stop a, is pivotally attached to the outer portion of, of the arm,

and when in alinement therewith as in Figs. 1, and 2', holds the stylus sleeve S, in its most extended position 2 1st the resistance of the spring 5. l nen this switch stop 0, is released and swung aside by the trip b, so that it extends laterally with relation to the stylus arm a, the spring 8, forces the sleeve S, inward against e nned stop 0, as shown in Fig. 3 eby prescribing the inner position of the st y it The trip If, is stationary and may oe mounted on top of the box casing B, or other fixed part.

M, is an electro-magnet positioned centrally under the clock-work A, with its armature m, in alinement with the suspender post 7). Said armature m, is coupled to the outer portion c of the stylus arm a,

by means of cord or equivalent connection e, in which is interposed a swivel 6', so that the stylus arm a, may rotate freely. l he electroanagnetlfll, is interposed in an electric circuit (Z, (5. of which the battery D, or other source or electricity forms a part. The circuit is clos d temporarily wheneverthe slidable terminal (Z pass-cs and contacts with the fixed terminal (Z The movable terminal (Z is positioned on a slide it, ar-

ranged in alinement with the bolt 2', of the door or other look I, (dotted in outline in Fig. 1.) This slide it, is mounted on a plate it, countersunk in the frame work of the door or other closure, and a spring 7L2, tends constantly to press the slide toward the bolt opening its, in the flange h In the absence of the bolt 2', the end of the slide it, rests against this flange 71', in position to receive the thrust of the bolt 2, when the latter is shot to lock the door or closure. EV hen the loo slide it, is thus forced back by the bolt 2', against the resistance of the spring h, the movable terminal (Z contacts temporarily with the stationary terminal (Z the circuit M, D, (Z, (Z, is closed, and the armature m, attracted, thus depressing the outer end a of the stylus arm a, through the medium of the connection 6, and causing the stylus s, to impinge on the annular record chart R. When the bolt 2', is retracted to unlock the door or other closure the spring if, returns the slide 1., to its normal position against the flange 76*, again making and breaking the electric circuit so that the stylus is again depressed to make a record on the dial R.

The record chart R, consists preferably of an annular strip of paper or other suitable material on the upper surface of which is printed or otherwise imposed lines representing the sub-di isions of the cycles of time for which the apparatus is adapted, the names of the days, &c. This strip might be endless were it not for the fact that it has to be positioned concentrically around the Suspender stud b, and hence is preferably slit transversely at some point in the circle, 0 it may be made up of two semi-circular sections, so that it may be conveniently positioned upon and removed from the table or support 6 which is preferably countersunk (as shown in Fi 1,) for its reception so as to aid in centralizing and holding the chartaccurately in position. In setting the apparatus the stylus sleeve S, is adjusted outward against the resistance of the spring 3, and the switch stop 0, turned parallel to the length of the arm (5, as in Figs. 1, and 2, when the spring a, will press the sleere S against the end of said switch stop 0, and hold it in that position until the switch stop is released by the trip t. Thus positioned the stylus s, is adapted to impinge and punch the outer row 1*, of the sub-divisions of the chart B. When toe arm a, has made a complete revolution the latch stop 0, encounters the trip t, and the sleeve S, assumes the inner position as above set forth, and shown in Fig. 3, bringing the stylus into alinemen-t with the inner row 1", of subdivisions of the chart. In 2, a four day chart of this character is illustrated, each sub-division representing an hour. Ob viousiy these sub-divisions may be further sub-divided to represent fractions of the hour, and the chart may be otherwise changed or modified to meet preference or requirements of use, it being understood that the chart R, is so positioned on its support as related to the trip If, that-the latter will effect the change of stylus from the outer concentric row 1, to the other inner 7", at the appropriate time.

The support 6 for the chart B, may be formed with annular grooves 6 29 (Fi 3,) coincident with the two positions of the stylus s, to facilitate the indentation or puncture of the record by the stylus, where the latter is pointed for the purpose; or a stylus adapted to otherwise mark the record ll, may be substituted for that shown if preferred.

A bell m, or other sounding device to be actuated by the armature m, may be provided to announce the bolting or unbolting of the door or closure simultaneously with the recording of the fact.

li hat I claim as my invention and desire to secure by Letters Patent is,

1. In recording apparatus of the charac ter designated, a suspended clock movement, a depressible stylus rotated thereby, a concentric time chart, an electric-magnet positioned under said clock movement in alinement with its suspender support, an armature for said magnet, a connection between said armature and said stylus arm, an electric circuit in which the magnet is interposed, and slidable contact forming part of said electric circuit and adapted to be actuated by a closure lock bolt to make and break the circuit, for the purpose described.

2. in recording apparatus of the character designated, a suspended clock movement, a depressible stylus arm rotated thereby, a concentric time chart formed with concentrio rows of time spaces, a stylus sleeve slidably mounted on said arm, a spring on said arm contacting with said stylus sleeve, a stationary stop on said arm for contacting with the stylus sleeve, a switch stop pivotally mounted on said arm and adapted to contact with said stylus sleeve, a stationary trip arranged to move said switch stop out of engagement with the stylus sleeve when the arm passes under said trip, an electromagnet positioned under said clock movement in alineinent with its suspender sup port, an armature for said magnet, a connection between said armature and said stylus arm, an electric circuit in which the u'iagnet is imposed, and a slidable contact forming part of said electric circuit and adapted to be actuated by a closure lock bolt to make and break the circuit, for the purpose described.

ROBERT PHILIP I'K OEBEL, JR.

(Vi tnesses v Geo. WM. Mnir'r, DOROTHY MIATT.

Co ies of this atent ma be obtained. for five cents each, bv addressin the Commissioner of Patents.

p J v a Washington, D. G. 

